#pragma once
#include<chrono>

struct user{
  char nickname[8];
  char pwd[8];
  std::chrono::steady_clock::time_point lasttime;
};

struct result_code{
   int code;
   char msg[20];
};
struct message{
    char fname[8]; // 发送者id
    char tname[8];
   char m_msg[1024];

};